The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 21, 1992
Filed:
Dec. 27, 1990
Applicant:
Inventors:
Assignee:
W.R. Grace & Co.-Conn, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
523203 ; 523502 ; 523514 ; 523515 ; 523516 ; 523521 ; 523523 ; 523527 ; 525166 ; 525170 ;
Abstract
New shrinkage control agents, for unsaturated polyester resin systems, which are copolymers of vinyl versatate and vinyl acetate, i.e., poly(vinyl versatate-co-vinyl acetate). The shrink control agents are useful both with neat and filled unsaturated polyester resin systems. The shrink control agents are especially useful under conditions where the unsaturated polyester resin system is cured at or below ambient temperatures.